- Relating to electrons emitted from a substance at very high temperature.More example sentences
- The thorium dispersion enhances thermionic electron emission, which in turn improves the starting characteristics of gas tungsten arc welding electrodes.
- Electricity can be generated by the thermionic effect, that is, the use of dissimilar metals can cause electrons to flow in the presence of heat.
More definitions of thermionicDefinition of thermionic in:
- The US English dictionary